I've just bought a Toshiba Canvio Advance 1TB external hard drive that connects to a USB 3.0 port. I've formatted it with file system ext4 using Ubuntu's Disks utility. When I take a full backup of my laptop's hard disk, the transfer rate starts very fast, something around 300 MB/s, but it quickly slows down to 30 MB/s as its "steady" rate. Why is that happening? Shall I upgrade the USB driver? My laptop has 16 GB of RAM and is running Ubuntu 22.04. Thanks.
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